KraussMaffei Berstorff GmbH

Germany

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B29C 47/08 - Component parts, details or accessories; Auxiliary operations 9
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations 4
B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle 4
B29C 48/92 - Measuring, controlling or regulating 4
B29C 47/60 - Screws 3
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1.

EXTRUSION DEVICE HAVING AT LEAST ONE PERFORATED PLATE

      
Application Number EP2019058770
Publication Number 2019/201637
Status In Force
Filing Date 2019-04-08
Publication Date 2019-10-24
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Reineke, Frank

Abstract

The invention relates to an extrusion device (1) comprising at least one extruder (2, 2.1, 2.2, 2.3) having a screw cylinder (3.1, 3.2, 3.3), a screw shaft (4.1, 4.2, 4.3) rotatably supported in the screw cylinder (3.1, 3.2, 3.3) and an extruder outlet (5.1, 5.2, 5.3), an injection mould (7) having an outlet nozzle (8) determining the cross-sectional contour of the extruder, and an extrusion head (6) arranged between the extruder outlet (5.1, 5.2, 5.3) of the at least one extruder (2, 2.1, 2.2, 2.3) and the outlet nozzle (8) of the injection mould (7), wherein at least one perforated plate (12.1, 12.2, 12.3) arranged in the extruder head (6) is provided, which has a plurality of passage openings (18), wherein the passage openings (18) are designed to dam up extrusion material conveyed from the at least one extruder (2, 2.1, 2.2, 2.3) through the passage openings (18) of the perforated plate (12.1, 12.2, 12.3) differently into at least one first region (B1) of the perforated plate (12.1, 12.2, 12.3) and at least one second region (B2) of the perforated plate (12.1, 12.2, 12.3), in such a way that the extrusion material is partly diverted from its preferential direction within a central section of the perforated plate (12.1, 12.2, 12.3), specifically increasingly into at least one edge section of the perforated plate (12.1, 12.2, 12.3).

IPC Classes  ?

  • B29C 48/70 - Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
  • B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
  • B29C 48/30 - Extrusion nozzles or dies
  • B29C 48/495 - Feedblocks
  • B29C 48/07 - Flat, e.g. panels
  • B29C 48/25 - Component parts, details or accessoriesAuxiliary operations

2.

Method for producing a tread

      
Application Number 16346759
Grant Number 11292218
Status In Force
Filing Date 2017-11-08
First Publication Date 2019-09-12
Grant Date 2022-04-05
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Rupprecht, Marko
  • Reinefahl, Jörg

Abstract

28,max).

IPC Classes  ?

  • B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
  • B60C 19/08 - Electric-charge-dissipating arrangements
  • B29C 48/92 - Measuring, controlling or regulating
  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
  • B29K 105/00 - Condition, form or state of moulded material

3.

METHOD FOR OPERATING AN EXTRUDER, AND EXTRUDER

      
Application Number EP2019051786
Publication Number 2019/154631
Status In Force
Filing Date 2019-01-24
Publication Date 2019-08-15
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Hepke, Harald

Abstract

i,sollppipp)).

IPC Classes  ?

  • B29C 48/92 - Measuring, controlling or regulating
  • B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
  • B29C 48/395 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders

4.

METHOD FOR OPERATING AN EXTRUSION SYSTEM AND EXTRUSION SYSTEM

      
Application Number EP2018085436
Publication Number 2019/137754
Status In Force
Filing Date 2018-12-18
Publication Date 2019-07-18
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Hepke, Harald

Abstract

ww), which encodes a wear state of at least one component of the extruder (12), and (c) outputting a maintenance message, which encodes the wear parameter.

IPC Classes  ?

  • B29C 48/92 - Measuring, controlling or regulating
  • G05B 19/4065 - Monitoring tool breakage, life or condition
  • B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
  • B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
  • B29B 7/28 - Component parts, details or accessoriesAuxiliary operations for measuring, controlling or regulating, e.g. viscosity control

5.

METHOD FOR PRODUCING A TREAD AND TREAD PRODUCTION DEVICE

      
Application Number EP2017078639
Publication Number 2018/099704
Status In Force
Filing Date 2017-11-08
Publication Date 2018-06-07
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Rupprecht, Marko
  • Reinefahl, Jörg

Abstract

The invention relates to a method for producing a tread (20), comprising the steps: extruding the tread (20), which has an outer side (22) and an inner side (24), opposite the outer side (22), and a carrying region (26) made of a carrying region rubber material and a guide strip (28) made of a guide strip rubber material, wherein the guide strip (28) extends from the outside (22) to the inside (24) and a specific electrical guide strip resistance (W28) of the guide strip rubber material is smaller than a specific electrical carrying region resistance of the carrying region rubber material. The steps according to the invention are: determining an electrical guide strip resistance (W28) of the guide strip (28) between the outer side (22) and the inner side (24) and outputting a warning signal when the electrical resistance (W) exceeds a specified maximum resistance (W28,max).

IPC Classes  ?

  • B29C 47/92 - Measuring, controlling or regulating
  • B60C 19/08 - Electric-charge-dissipating arrangements
  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance

6.

Tyre strip extrusion apparatus for producing tread and/or side strips for tyres, and method for producing a tread or side strip of a tyre

      
Application Number 15576547
Grant Number 11027472
Status In Force
Filing Date 2016-05-18
First Publication Date 2018-05-31
Grant Date 2021-06-08
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Reineke, Frank

Abstract

A tyre strip extrusion apparatus includes extruders and an extrusion head which includes a head housing having feed openings respectively connected to the extruders for feed of extrusion material. An injection moulding tool is connected to the head housing and includes a profile plate formed with an outlet opening which communicates with the feed openings for extrusion material to flow from the feed openings to the outlet opening for extruding a web from the extrusion material. Bearing against the head housing along a first parting surface is a first distributor plate. A second distributor plate is arranged upstream of the profile plate in flow direction of the extrusion material. The first distributor plate bears along a second parting surface against the second distributor plate. The first and second distributor plates are configured such that at least a majority of the material paths runs through the first and second parting surfaces.

IPC Classes  ?

  • B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
  • B29C 48/305 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
  • B29C 48/07 - Flat, e.g. panels
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
  • B29C 48/495 - Feedblocks
  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B29C 48/395 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
  • B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
  • B29L 30/00 - Pneumatic or solid tyres or parts thereof

7.

CALENDER STACK AND METHOD FOR CALENDERING A PLASTIC FILM

      
Application Number EP2017053837
Publication Number 2017/162387
Status In Force
Filing Date 2017-02-21
Publication Date 2017-09-28
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Friesen, Andreas
  • Thole, Joachim

Abstract

The invention relates to a calender stack for an extruded material web (51) made from thermoplastic, in particular a film web, having (a) a stand (1) which has (i) a first guide rail set (2) which comprises two arcuate first guide rails (2', 2'') and (ii) a second guide rail set (3) which comprises two arcuate second guide rails (3', 3''), (b) a first calender roll (8) which can be rotated about a first calender roll rotational axis (D8) and is mounted on the stand (1), (c) a second calender roll (9) which forms a calender with the first calender roll (8) and is fastened to the stand (1), (d) an adjusting roll (14) which can be rotated about an adjusting roll rotational axis (D14) and is mounted on the stand (1), and (e) a supporting device (34), on which the stand (1) is mounted rotatably in such a way that the first calender roll rotational axis (D8) remains stationary during a rotation of the stand (1). According to the invention, the stand (1) is configured in such a way that the adjusting roll (14) can be positioned at an angle of inclination (α) of at least 55°, wherein the angle of inclination (α) is formed firstly between a horizontal which runs perpendicularly with respect to the first calender roll rotational axis (D8) and through the first calender roll rotational axis (D8), and secondly a straight line which runs perpendicularly with respect to the first calender roll rotational axis (D8) through the first calender roll rotational axis (D8) and through the adjusting roll rotational axis (D14).

IPC Classes  ?

  • B29C 43/24 - Calendering
  • B29C 43/46 - Rollers
  • B29C 47/90 - with calibration or sizing
  • B29C 59/04 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing using rollers or endless belts

8.

Multiple extrusion press head

      
Application Number 15519067
Grant Number 10513072
Status In Force
Filing Date 2015-11-09
First Publication Date 2017-08-03
Grant Date 2019-12-24
Owner KraussMaffei Berstorff GmbH (Germany)
Inventor
  • Hahn, Klaus
  • Hepke, Harald

Abstract

The invention relates to a multiple extrusion press head for producing tread profiles of tyres, comprising: a base body (12) having a first supply opening (22) for connecting a first extruder, a second supply opening (24) for connecting a second extruder, a third supply opening (26) for connecting a third extruder, and a fourth supply opening for connecting a fourth extruder; a first head part (14) which is mounted such that it can swivel in relation to the base body, and which has a receiving means (32) that is open in the direction of the base body (12); a second head part that is mounted such that it can swivel in relation to the base body (12); at least one flow channel insert (18, 20) that is mounted such that it can swivel in relation to the base body (12), wherein the first head part (14) and the second head part (16) can be brought into a closed state, in which the head parts (14, 16) are connected to one another in a pressure-tight manner, and a first flow channel (34), a second flow channel (36), a third flow channel (38) and a fourth flow channel (40) are formed in the multiple extrusion press head (10), wherein every flow channel is connected to a supply opening. According to the invention, the base body (12) has a fifth supply opening (30) for connecting a fifth extruder, and the multiple extrusion press head (10) has a second flow channel insert (20), which, independently of the first flow channel insert (18), is mounted such that it can swivel in relation to the base body (12), and borders a fifth flow channel (42) that is connected to the fifth supply opening (30).

IPC Classes  ?

  • B29C 47/30 - Multi-port extrusion nozzles
  • B29C 48/30 - Extrusion nozzles or dies
  • B29C 48/345 - Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
  • B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
  • B29C 48/33 - Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
  • B29C 48/27 - CleaningPurgingAvoiding contamination
  • B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
  • B29C 48/07 - Flat, e.g. panels
  • B29C 48/18 - Articles comprising two or more components, e.g. co-extruded layers the components being layers
  • B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
  • B29K 21/00 - Use of unspecified rubbers as moulding material
  • B29L 30/00 - Pneumatic or solid tyres or parts thereof

9.

Hose extrusion head and method for producing a hose

      
Application Number 15120957
Grant Number 10639838
Status In Force
Filing Date 2015-02-25
First Publication Date 2016-12-15
Grant Date 2020-05-05
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Reineke, Frank
  • Hepke, Harald

Abstract

The invention relates to a hose extrusion head for producing a hose (50), said head comprising a head housing, a duct (14) formed in the head housing (12) for supplying a hose material (22), a pin (16) which is arranged in the duct (14), a die (18) and at least one securing element (20). According to the invention, the securing element (20) is attached by one end (39) to the die (18) such that said end (39) follows the movement of the die (18).

IPC Classes  ?

  • B29C 48/325 - Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles adjustable
  • B29C 48/30 - Extrusion nozzles or dies
  • B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
  • B29C 48/92 - Measuring, controlling or regulating
  • B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

10.

TYRE STRIP EXTRUSION APPARATUS FOR PRODUCING TREAD AND/OR SIDE STRIPS FOR TYRES, AND METHOD FOR PRODUCING A TREAD OR SIDE STRIP OF A TYRE

      
Application Number EP2016061070
Publication Number 2016/192988
Status In Force
Filing Date 2016-05-18
Publication Date 2016-12-08
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Reineke, Frank

Abstract

The invention relates to a tyre strip extrusion apparatus for producing tread and/or side strips for tyres, having a first extruder (12.1) which has at least one first screw (14.1) with a first screw longitudinal axis (L14.1), a second extruder (12.2) which has at least one second screw (14.2) with a second screw longitudinal axis (L14.2), a third extruder (12.3) which has at least one third screw (14.3) with a third screw longitudinal axis (L14.3), at least one fourth extruder (12.4) which has at least one fourth screw (14.4) with a fourth screw longitudinal axis (L14.4), and an extrusion head (18) with a head housing (20) which has at least four feed openings (38.i) which are connected to in each case one associated extruder (12.i) for the feed of extrusion material, and having an injection-moulding tool (22) for the moulding of an extruded web from the extrusion materials, which injection-moulding tool is connected to the head housing (20), has an outlet opening (26) and is arranged such that extrusion material fed through the feed openings (38.i) can be conducted along a respective material path to the outlet opening (26), wherein at least the majority of the extruders (12.i) and the head housing (20) are designed such that the screws (14.i) of the respective extruder (12.i) are removable while the head housing is stationary relative to the extruders, wherein the injection-moulding tool (22) has a profile plate (24) on which the outlet opening (26) is formed. It is provided according to the invention that the injection-moulding tool (22) has a first extruder plate (28) and at least one second distributor plate (30, 32) which is arranged, upstream of the profile plate (24), relative to a material path, the first distributor plate (28) bears, along a first parting surface (46.1), against the head housing (20) and bears, along a second parting surface (46.2), against the second distributor plate (30), and the distributor plates are designed such that at least a majority of all material paths run through all of the parting surfaces.

IPC Classes  ?

  • B29C 47/56 - using more than one extruder to feed one die
  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • B29C 47/14 - with broad opening, e.g. for sheets

11.

Wearing body for receiving a twin screw for extruding meltable material

      
Application Number 15023920
Grant Number 09855697
Status In Force
Filing Date 2014-09-02
First Publication Date 2016-07-28
Grant Date 2018-01-02
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Scheel, Gerhard
  • Behling, Michael

Abstract

A wearing body or bushing having an axial twin borehole for receiving a twin screw for extruding meltable material, in particular plastic. In order to avoid cracking and to save material, the wearing body has a radial cross section with an outer contour, which is convexly curved over the entire circumference and is in the form of an oval, and with first and second axes of symmetry, which run perpendicularly to one another and define a point of intersection which lies on the extrusion axis. The width of the oval on the first axis of symmetry is greater than the height of the oval on the second axis of symmetry.

IPC Classes  ?

  • B29C 47/66 - Barrels or cylinders
  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • B29C 47/40 - using at least two intermeshing screws
  • B29L 31/00 - Other particular articles

12.

MULTIPLE EXTRUSION PRESS HEAD

      
Document Number 02966379
Status In Force
Filing Date 2015-11-09
Open to Public Date 2016-05-26
Grant Date 2022-08-30
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Hahn, Klaus
  • Hepke, Harald

Abstract

The invention relates to a multiple extrusion press head for producing tread profiles of tyres, comprising: a base body (12) having a first supply opening (22) for connecting a first extruder, a second supply opening (24) for connecting a second extruder, a third supply opening (26) for connecting a third extruder, and a fourth supply opening for connecting a fourth extruder; a first head part (14) which is mounted such that it can swivel in relation to the base body, and which has a receiving means (32) that is open in the direction of the base body (12); a second head part that is mounted such that it can swivel in relation to the base body (12); at least one flow channel insert (18, 20) that is mounted such that it can swivel in relation to the base body (12), wherein the first head part (14) and the second head part (16) can be brought into a closed state, in which the head parts (14, 16) are connected to one another in a pressure-tight manner, and a first flow channel (34), a second flow channel (36), a third flow channel (38) and a fourth flow channel (40) are formed in the multiple extrusion press head (10), wherein every flow channel is connected to a supply opening. According to the invention, the base body (12) has a fifth supply opening (30) for connecting a fifth extruder, and the multiple extrusion press head (10) has a second flow channel insert (20), which, independently of the first flow channel insert (18), is mounted such that it can swivel in relation to the base body (12), and borders a fifth flow channel (42) that is connected to the fifth supply opening (30).

IPC Classes  ?

  • B29C 48/47 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged

13.

MULTIPLE EXTRUSION PRESS HEAD

      
Application Number EP2015076070
Publication Number 2016/078951
Status In Force
Filing Date 2015-11-09
Publication Date 2016-05-26
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Hahn, Klaus
  • Hepke, Harald

Abstract

The invention relates to a multiple extrusion press head for producing tread profiles of tyres, comprising: a base body (12) having a first supply opening (22) for connecting a first extruder, a second supply opening (24) for connecting a second extruder, a third supply opening (26) for connecting a third extruder, and a fourth supply opening for connecting a fourth extruder; a first head part (14) which is mounted such that it can swivel in relation to the base body, and which has a receiving means (32) that is open in the direction of the base body (12); a second head part that is mounted such that it can swivel in relation to the base body (12); at least one flow channel insert (18, 20) that is mounted such that it can swivel in relation to the base body (12), wherein the first head part (14) and the second head part (16) can be brought into a closed state, in which the head parts (14, 16) are connected to one another in a pressure-tight manner, and a first flow channel (34), a second flow channel (36), a third flow channel (38) and a fourth flow channel (40) are formed in the multiple extrusion press head (10), wherein every flow channel is connected to a supply opening. According to the invention, the base body (12) has a fifth supply opening (30) for connecting a fifth extruder, and the multiple extrusion press head (10) has a second flow channel insert (20), which, independently of the first flow channel insert (18), is mounted such that it can swivel in relation to the base body (12), and borders a fifth flow channel (42) that is connected to the fifth supply opening (30).

IPC Classes  ?

  • B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
  • B29C 47/56 - using more than one extruder to feed one die
  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • B29C 47/12 - Extrusion nozzles or dies
  • B29C 47/24 - with die parts rotatable relative to each other
  • B29K 21/00 - Use of unspecified rubbers as moulding material
  • B29L 30/00 - Pneumatic or solid tyres or parts thereof
  • B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
  • B29D 30/62 - Applying bands of rubber treads, i.e. applying camel backs by extrusion or injection of the tread on carcass

14.

HOSE EXTRUSION HEAD AND METHOD FOR PRODUCING A HOSE

      
Application Number EP2015053878
Publication Number 2015/135750
Status In Force
Filing Date 2015-02-25
Publication Date 2015-09-17
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Reineke, Frank
  • Hepke, Harald

Abstract

The invention relates to a hose extrusion head for producing a hose (50), said head comprising a head housing, a duct (14) formed in the head housing (12) for supplying a hose material (22), a pin (16) which is arranged in the duct (14), a die (18) and at least one securing element (20). According to the invention, the securing element (20) is attached by one end (39) to the die (18) such that said end (39) follows the movement of the die (18).

IPC Classes  ?

15.

WEARING BODY FOR RECEIVING A TWIN SCREW FOR EXTRUDING MELTABLE MATERIAL

      
Application Number EP2014068557
Publication Number 2015/043888
Status In Force
Filing Date 2014-09-02
Publication Date 2015-04-02
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Scheel, Gerhard
  • Behling, Michael

Abstract

The invention relates to a wearing body or bushing having an axial twin borehole (ZB) for receiving a twin screw for extruding meltable material, in particular plastic. In order to avoid cracking and to save material, the wearing body according to the invention has a radial cross section with an outer contour (AK), which is convexly curved over the entire circumference and is in the form of an oval, and with two axes of symmetry (SA1, SA2), which run perpendicularly to one another and the point of intersection (E) of which lies on the extrusion axis (EA), wherein the width (a) of the oval on the first axis of symmetry (SA1) is greater than the height (b) of the oval on the second axis of symmetry (SA2). The invention also relates to a housing body complementary to the wearing body and also to an extrusion cylinder for a twin-screw extruder having such a wearing body and/or housing body and also to a twin-screw extruder having such an extrusion cylinder.

IPC Classes  ?

  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • B29C 47/40 - using at least two intermeshing screws
  • B29C 47/66 - Barrels or cylinders

16.

Extruder screw, extruder, and method for producing an extruder screw

      
Application Number 14241028
Grant Number 09802352
Status In Force
Filing Date 2012-08-31
First Publication Date 2014-07-17
Grant Date 2017-10-31
Owner KraussMaffei Berstorff GmbH (Germany)
Inventor Behling, Michael

Abstract

An extruder screw includes an extruder shaft and at least one extruder segment. The extruder shaft has a prismatic mandrel having external teeth and a longitudinal mandrel axis. The extruder segment has internal teeth and a longitudinal internal-teeth axis and can be slid onto the mandrel, such that the extruder segment can be connected to the mandrel for rotation therewith. The internal teeth have a profile having a meshing profile and, in an inner area between the first and second end faces of the extruder segment, include a prismatic main profile that has a main cross-section. Furthermore, the internal teeth of the extruder segment have an edge profile adjacent to at least one end face of the extruder segment, which edge profile has a smaller edge cross-section than the main profile at least in the area of the meshing profile.

IPC Classes  ?

  • B29C 47/60 - Screws
  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
  • B29C 47/38 - using screws
  • B29C 47/62 - having more than one screw-thread
  • B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)

17.

EXTRUDER SCREW, EXTRUDER, AND METHOD FOR PRODUCING AN EXTRUDER SCREW

      
Application Number EP2012066937
Publication Number 2013/030322
Status In Force
Filing Date 2012-08-31
Publication Date 2013-03-07
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Behling, Michael

Abstract

The invention relates to an extruder screw comprising an extruder shaft and at least one extruder segment (10). The extruder shaft comprises a prismatic mandrel having external teeth and a longitudinal mandrel axis. The extruder segment (10) has internal teeth (12) and a longitudinal internal-teeth axis (L12) and can be slid onto the mandrel, such that the extruder segment (10) can be connected to the mandrel for rotation therewith. The internal teeth (12) have a profile having a meshing profile and, in an inner area between the first (16) and second (18) end faces of the extruder segment (10), comprise a prismatic main profile that has a main cross-section. Furthermore, the internal teeth (12) of the extruder segment (10) have an edge profile adjacent to at least one end face (16) of the extruder segment (10), which edge profile has a smaller edge cross-section than the main profile at least in the area of the meshing profile.

IPC Classes  ?

  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations
  • B29C 47/60 - Screws
  • F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially

18.

DEVICE AND METHOD FOR CLAMPING EXTRUDING SCREW SEGMENTS ON A MANDREL

      
Application Number EP2011066320
Publication Number 2012/045576
Status In Force
Filing Date 2011-09-20
Publication Date 2012-04-12
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Behling, Michael

Abstract

The invention relates to a device (200) and method for clamping extruding screw segments (110, 112) to a mandrel (120). In order to allow rapid, precise, and controlled clamping, the device (200) according to the invention comprises a tension element (210) connected axially in tension to the mandrel (120), a compression element (220) contacting the end face of the last extruder screw segment (112) facing the tension element (210), and a clamping element (230) exerting an opposing axial force on the tension and compression element along the mandrel (120). The axial force is thereby defined so that after assembling and removing the clamping device, a desired pretension force remains in the extruder screw.

IPC Classes  ?

19.

EXTRUDING DEVICE

      
Application Number EP2009059810
Publication Number 2010/018062
Status In Force
Filing Date 2009-07-29
Publication Date 2010-02-18
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Pfeiffer, Armin

Abstract

The invention relates to an extruding device comprising an extruder cylinder (2), a screw (4), and a rotary drive for the screw (4). According to the invention, in order to enable an especially easy installation and removal of the assemblies of the extruding device, the screw end (4") facing the rotary drive does not protrude during operation into bearings provided between the extruder cylinder and rotary drive, but rather particularly into a thrust bearing (14).

IPC Classes  ?

  • B29C 47/08 - Component parts, details or accessories; Auxiliary operations

20.

EXTRUSION SYSTEM HAVING AN EXTRUDER AND A SCREEN CHANGING DEVICE

      
Application Number EP2009058180
Publication Number 2010/015463
Status In Force
Filing Date 2009-06-30
Publication Date 2010-02-11
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Wente, Claus-Heinrich
  • Seidel, Marko

Abstract

The invention relates to an extrusion system having an extruder and a screen changing device (12), particularly a multi-pin screen changing device. Such screen changing devices are commonly supported on special displacement frames, which, for example, can be displaced towards a discharge end of an extruder via a rail system and can be connected to the extruder at said location. The problem addressed by the invention is to design an extrusion system that is particularly easy to clean and maintain and can be started up in a quick and simple manner. Said problem is solved by an extrusion system in which an extruder and a screen changing device are provided and the screen changing device is disposed such that the same can be pivoted relative to the extruder. The screen changing device may also be pivoted relative to the extruder at least into an operational position and a maintenance and cleaning position.

IPC Classes  ?

21.

METHOD FOR ALIGNING A CUTTER SPINDLE OF A GRANULATOR AND GRANULATOR FOR PRODUCING PLASTIC GRANULATE

      
Application Number EP2009054374
Publication Number 2009/130138
Status In Force
Filing Date 2009-04-14
Publication Date 2009-10-29
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Pfeiffer, Armin
  • Weber, Thorsten
  • Voigt, Jürgen

Abstract

The present invention relates to a method for aligning a cutter spindle of a granulator, particularly an underwater granulator, relative to a cutting plate (4). As precise an alignment of the cutter spindle is of great significance here for continuous very high to optimal quality of the granulate. According to the invention, such can be achieved by the following steps. Rotationally driving the cutter spindle (14) by means of a drive motor, measuring a force acting on the cutter spindle (14), generating a corresponding signal, and adjusting the alignment and especially the angular alignment of the cutter spindle (14) relative to the cutting plate (4) as a function of the signal. The invention further relates to a granulator, particularly an underwater granulator, for producing plastic granulate, having a cutting box (2) and a cutter spindle (14), a cutter holder rotatably received in the cutting box (2) being mounted thereon and acting together with a cutting plate (4) during operation, and a drive motor that can be connected to the cutter spindle (14), having means for measuring a force acting on the cutter spindle (14), means for generating a corresponding signal, and adjusting means (30, 30’, 30”) for adjusting the alignment of the cutter spindle (14) relative to the cutting plate (4) as a function of the signal.

IPC Classes  ?

  • B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion

22.

KraussMaffei Berstorff

      
Application Number 978163
Status Registered
Filing Date 2007-11-21
Registration Date 2007-11-21
Owner
  • KraussMaffei Berstorff GmbH (Germany)
  • KraussMaffei Technologies GmbH (Germany)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 37 - Construction and mining; installation and repair services
  • 41 - Education, entertainment, sporting and cultural services
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Machines for processing rubber, plastic and plastic melts, in particular, extrusion systems, injection molding machines, reaction molding machines, PET systems, extruders and their components; extruder screws, electric and hydraulic drives for extruder screws; extrusion systems, essentially consisting of extruder, mold, calibration device, cooling device (adapted), haul-off device and cut-to-length device (machine parts), in particular for the production of pipes, hoses, profile sections, plates, film and granulate made of plastic materials or mixtures of plastics and other substances, aforementioned goods included in this class; injection molding machines and their components; machines for smoothing and rolling, in particular smoothing tools and roll mills; blown film machines; calendars, in particular planet calendars; vulcanising machines; machines for deep-drawing and thermoforming of foils; clamping units, plasticizing units, plasticizing screws, return flow locks (aforementioned goods included in class, electric and hydraulic drives for clamping and plasticizing units of injection molding machines; stuffing units (machine components) for feeding non-pourable plastic mold melts in plasticizing units, in particular for feeding moist polyester, thermoset SMC and BMC melts; machines and machine systems (so-called lines) for producing optical data carriers such as CD, CD-R, DVD, DVD-R, HD-DVD and blue ray including parts of these machines and machine systems, in particular handling devices, devices for bonding substrates, coating devices for applying functional or protective layers on optical data carriers, cooling devices and stacking devices for optical data carriers; machines and machine systems for producing PET preforms (PET parisons) including parts of these machines and machine systems, in particular molds for the production of the pet preforms including demolding and cooling devices for PET preforms (aforementioned goods included in this class); molds for plastic processing machines, included in this class; reaction molding machine; machines for processing chemically reactive plastic components, in particular polyurethane (PU) foam molding machines including parts of the aforementioned machines, in particular, metering machines, premixing stations, mixing heads, mixing head manipulators, mold carriers, molds for PU foam molding machines and conveying systems for mold carriers included in this class; rotational molding machines for the production of thin-walled plastic parts; all aforementioned goods included in this class. Electrical and electronic control systems for plastic processing machines, in particular, for extruders, extrusion systems, injection molding machines reaction molding machines; programs for controlling plastic processing machines, in particular, for the control of extruders, extrusion systems, injection molding machines; reaction molding machines: recorded data carriers with software for controlling plastic processing machines, in particular, for controlling extruders, extrusion systems, injection molding machines, reaction molding machines; measurement, signal and checking devices and instruments for plastic processing machines, in particular, for extruders, extrusion systems, injection molding machines and reaction molding machines. Commissioning of machines in the framework of installation, assembly, repair, maintenance, upkeep and care of plastic and rubber processing machines, in particular, extrusion systems, injection molding machines, reaction molding machines, PET systems and optical disc systems, including parts of the aforementioned goods; regeneration of screws for injection molding machines and extruders; repair of used injection molding machines, extruders and reaction molding machines. Training and instruction in the operation of plastic processing machines and system such as, in particular, extrusion systems, injection molding machines, reaction molding machines, PET systems and optical disc systems. Performance of trials and test series in the area of plastic processing, in particular, on extrusion systems, injection molding machines and reaction molding machines; preparation of technical reports, material testing, project and design planning in the area of plastic and rubber processing; preparation and maintenance of software programs for the operation of plastic and rubber processing machines.

23.

APPARATUS FOR THE PRODUCTION OF MATERIAL WEBS

      
Application Number EP2007057116
Publication Number 2008/015085
Status In Force
Filing Date 2007-07-11
Publication Date 2008-02-07
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor Reisswig, Georg

Abstract

An apparatus for the production of material webs, in particular of chipboard or fibreboard or chip mat or fibre mat, with at least one central roll (2) and at least one pressure roll (3), where at least one pressure gap has been formed by the central roll (2) and the pressure roll (3), has been designed in such a way that at least one further pressure gap has been formed by the central roll (2) and at least one additional pressure roll (3'), with a view to increased running time of the apparatus and more secure operation.

IPC Classes  ?

24.

KRAUSSMAFFEI BERSTORFF

      
Serial Number 79059192
Status Registered
Filing Date 2007-11-21
Registration Date 2010-03-23
Owner
  • KraussMaffei Berstorff GmbH (Germany)
  • KraussMaffei Technologies GmbH (Germany)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 37 - Construction and mining; installation and repair services
  • 41 - Education, entertainment, sporting and cultural services
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

MACHINES FOR PROCESSING RUBBER, PLASTIC AND PLASTIC MELTS, NAMELY, EXTRUSION MACHINES, INJECTION MOLDING MACHINES, REACTION MOLDING MACHINES ALL FOR PROCESSING RUBBER, PLASTIC AND PLASTIC MELTS; EXTRUDERS FOR PROCESSING RUBBER, PLASTIC AND PLASTIC MELTS; ELECTRIC AND HYDRAULIC DRIVES FOR EXTRUDER SCREWS, NAMELY, ELECTRIC AND HYDRAULIC MOTORS FOR MACHINES, ELECTRIC AND HYDRAULIC CONTROLS FOR MACHINES; EXTRUSION MACHINES, CONSISTING PRIMARILY OF EXTRUDER, MOLD OR DIE, CALIBRATORS, ADAPTED COOLING UNIT, HAUL-OFF UNIT AND CUT-TO-LENGTH MACHINE PARTS, IN PARTICULAR FOR THE PRODUCTION OF PIPES, HOSES, PROFILE SECTIONS, PLATES, FOIL AND GRANULATE MADE OF PLASTIC MATERIALS OR MIXTURES OF PLASTICS AND OTHER SUBSTANCES; INJECTION MOLDING MACHINES AND THEIR COMPONENTS, NAMELY, CLAMPING UNITS BEING A PART OF INJECTION MOLDING MACHINES; PLASTICIZING UNITS BEING PARTS OF INJECTION MOLDING MACHINES, PLASTICIZING SCREWS BEING PARTS OF INJECTION MOLDING MACHINES, RETURN-FLOW LOCKS, NAMELY, BACK FLOW REGULATING VALVES BEING PARTS OF INJECTION MOLDING MACHINES, ELECTRIC AND HYDRAULIC MOTORS AND CONTROLS FOR CLAMPING AND, PLASTICIZING UNITS OF INJECTION MOLDING MACHINES; MACHINE COMPONENTS, NAMELY, STUFFING UNITS FOR FEEDING NON-POURABLE PLASTIC MOLD MELTS INTO PLASTIC MOLDING MACHINES, IN PARTICULAR FOR FEEDING MOIST POLYESTER, THERMOSET SMC AND BMC MELTS; MACHINES FOR CALENDARING AND ROLLING, NAMELY, CALENDARS AND ROLL MILLS; BLOWN FILM EXTRUSION MACHINES; CALENDERS, NAMELY, PLANET CALENDERS; RUBBER VULCANIZING MACHINES; MACHINES FOR DEEP-DRAWING AND THERMOFORMING OF FILMS, NAMELY, DEEP DRAWING PRESSES AND THERMOFORMING MACHINES; MACHINES AND MACHINE SYSTEMS FOR PRODUCING PET PREFORMS AND PARTS OF THESE MACHINES, NAMELY, MOLDS FOR THE PRODUCTION OF PET PREFORMS AND COOLING UNITS BEING AN INTEGRAL PART OF PET PREFORM MACHINES; MOLDS FOR PLASTIC PROCESSING MACHINES INCLUDED IN THIS CLASS; REACTION MOLDING MACHINES; MACHINES FOR PROCESSING CHEMICALLY REACTIVE PLASTIC COMPONENTS, IN PARTICULAR, POLYURETHANE (PU) FOAM MOLDING MACHINES AND THEIR COMPONENTS, NAMELY, METERING MACHINES, PREMIXING STATIONS, MIXING HEADS, MIXING HEAD MANIPULATORS, MOLD CARRIERS, MOLD FOR PU FOAM MOLDING MACHINES AND CONVEYING SYSTEMS FOR MOLD CARRIERS INCLUDED IN THIS CLASS; ROTATIONAL MOLDING MACHINES FOR THE PRODUCTION OF THIN-WALLED PLASTIC PARTS ELECTRICAL AND ELECTRONIC CONTROLS FOR PLASTIC PROCESSING MACHINES, NAMELY, FOR EXTRUDERS, EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES REACTION MOLDING MACHINES; OPERATING SYSTEM PROGRAMS FOR CONTROLLING PLASTIC PROCESSING MACHINES, NAMELY, FOR THE CONTROL OF EXTRUDERS, EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES, REACTION MOLDING MACHINES; RECORDED DATA CARRIERS WITH OPERATING SYSTEM SOFTWARE FOR CONTROLLING PLASTIC PROCESSING MACHINES, NAMELY, FOR CONTROLLING EXTRUDERS, EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES AND REACTION MOLDING MACHINES; ELECTRONIC-BASED INSTRUMENTS FOR MEASURING, SIGNALING AND REGULATING PARAMETERS IN DOSING, TIMING AND CONTROLLING ALL ASPECTS IN THE OPERATION OF EXTRUSION MACHINES, INJECTION MOLDING MACHINES AND REACTION MOLDING MACHINES, NAMELY, SIGNAL CONDITIONING AND COMMUNICATION DEVICES FOR INDUSTRIAL PROCESS CONTROL, VOLTAGE REGULATORS; MEASURING AND CONTROL DEVICES FOR INJECTION MOLDING AND EXTRUSION MACHINE TECHNOLOGY INSTALLATION, ASSEMBLY, REPAIR, MAINTENANCE, UPKEEP AND CARE OF PLASTIC AND RUBBER PROCESSING MACHINES, NAMELY, EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES, REACTION MOLDING MACHINES AND PET SYSTEMS, INCLUDING PARTS OF THE AFOREMENTIONED GOODS; MAINTENANCE AND RECONDITIONING OF SCREWS FOR INJECTION MOLDING MACHINES AND EXTRUDERS; REPAIR OF USED INJECTION MOLDING MACHINES, EXTRUDERS AND REACTION MOLDING MACHINES TRAINING AND INSTRUCTION IN THE OPERATION OF PLASTIC PROCESSING MACHINES AND SYSTEM, NAMELY, EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES, REACTION MOLDING MACHINES, PET SYSTEMS PERFORMANCE OF TRIALS AND TEST SERIES IN THE AREA OF PLASTIC PROCESSING, NAMELY, INDUSTRIAL RESEARCH ON EXTRUSION SYSTEMS, INJECTION MOLDING MACHINES AND REACTION MOLDING MACHINES; INDUSTRIAL RESEARCH, NAMELY, PREPARATION OF TECHNICAL REPORTS, MATERIAL TESTING, PROJECT AND DESIGN PLANNING IN THE AREA OF PLASTIC AND RUBBER PROCESSING; DESIGN AND MAINTENANCE OF SOFTWARE PROGRAMS FOR THE OPERATION OF PLASTIC AND RUBBER PROCESSING MACHINES

25.

SCREW ELEMENT

      
Application Number EP2007002482
Publication Number 2007/112861
Status In Force
Filing Date 2007-03-21
Publication Date 2007-10-11
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
Inventor
  • Behling, Michael
  • Dahl, Ralf, J.

Abstract

A screw element, in particular a kneading element (1), to be used with a plasticating unit, having a screw shank with at least two kneading units, wherein the kneading units can be arranged on a common axis, for example the screw shank, and wherein the kneading units have a geometry, is designed with a view to particularly good plastication and reduced mechanical stress in such a way that the geometry of at least two successively arranged kneading units differs.

IPC Classes  ?

  • B29C 47/64 - having incorporated mixing devices
  • B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix

26.

SCREWCON

      
Serial Number 76467408
Status Registered
Filing Date 2002-11-15
Registration Date 2005-03-15
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 16 - Paper, cardboard and goods made from these materials

Goods & Services

COMPUTER PROGRAMS FOR USE IN THE CONFIGURATION OF EXTRUDERS AND PARTS THEREOF IN THE FIELD OF COMMERCIAL PLASTICS; PRERECORDED MAGNETIC DATA CARRIERS FEATURING SOFTWARE FOR THE CONFIGURATION EXTRUDERS AND PARTS THEREOF COMPUTER PROGRAM MANUALS FOR THE CONFIGURATION OF PLASTICS EXTRUDERS AND PARTS THEREOF

27.

SCREWCON

      
Application Number 115379400
Status Registered
Filing Date 2002-09-26
Registration Date 2004-08-30
Owner KraussMaffei Berstorff GmbH (Germany)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 16 - Paper, cardboard and goods made from these materials

Goods & Services

(1) Computer programs for the configuration of extruders and parts thereof; pre-recorded CD's containing the aforementioned computer programs. (2) Manuals for computer programs for the configuration of extruders and parts thereof.

28.

BERSTORFF

      
Serial Number 73048638
Status Registered
Filing Date 1975-04-07
Registration Date 1977-02-08
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

CALENDER AND CONTINUOUS PRESSES, ALL FOR THE USE IN THE MANUFACTURE OF SHEET MATERIAL, AND PARTS OF ALL THE FOREGOING

29.

BERSTORFF

      
Serial Number 72289096
Status Registered
Filing Date 1968-01-18
Registration Date 1969-12-02
Owner KRAUSSMAFFEI BERSTORFF GMBH (Germany)
NICE Classes  ?
  • 06 - Common metals and ores; objects made of metal
  • 07 - Machines and machine tools
  • 08 - Hand tools and implements
  • 09 - Scientific and electric apparatus and instruments
  • 11 - Environmental control apparatus
  • 12 - Land, air and water vehicles; parts of land vehicles
  • 16 - Paper, cardboard and goods made from these materials
  • 21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
  • 28 - Games; toys; sports equipment

Goods & Services

ROLLING MILLS; TUBE MAKING MACHINES; [ VULCANISING PRESSES AND AUTOCLAVE PRESSES; ] CALENDERS FOR CALENDERING RUBBER, SYNTHETIC RUBBER, [ SYNTHETIC RESINS AND PLASTIC SUBSTANCES, ] CALENDERS FOR RUBBERISING TYPE CORD AND FOR UNPLASTICISED FILM AND MULTI-ROLL PROFILE CALENDERS; EXTRUDERS FOR EXTRUDING RUBBER, SYNTHETIC RUBBER, [ SYNTHETIC RESINS, ] PLASTIC SUBSTANCES, RIGID PIPES AND SHEETING; [ MACHINES FOR LAMINATING PLASTIC FILM TO OTHER PLASTIC FILM, TO PAPER AND TO TEXTILES; WINDING MACHINES AND WRAPPING MACHINES FOR HOSES AND RUBBER ROLLERS; ] CRACKERS AND REFINERS FOR WASTE RUBBER, SYNTHETIC RUBBER, [ SYNTHETIC RESINS AND PLASTIC SUBSTANCES; CUTTING MACHINES, MOULDING MACHINES, ] CURING MACHINES, GRANULATING MACHINES, MIXING MILLS AND STOCK BLENDERS, ALL FOR USE WITH RUBBER, SYNTHETIC RUBBER, [ SYNTHETIC RESINS AND PLASTIC SUBSTANCES; ] MACHINES FOR COVERING CABLES WITH RUBBER, SYNTHETIC RUBBER, [ SYNTHETIC RESINS AND PLASTIC SUBSTANCES; ] MACHINES FOR BUILDING RUBBER ROLLERS AND PARTS OF ALL THE FOREGOING

30.

BERSTORFF

      
Application Number 030996900
Status Registered
Filing Date 1967-12-30
Registration Date 1969-06-20
Owner KraussMaffei Berstorff GmbH (Germany)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

(1) Machines, apparatus and equipment for processing rubber, synthetic-rubber, synthetic resins and plastic substances; vulcanisation plant; calenders; rolling mills; tube-making machines; presses; machines for manufacture of sheets, floor coverings, driving belts and foils; and extrusion machines.